Hello, I have 2x S10 + Performance Edition (White and black)
SM-G975F/DS
1.5 years ago, the bootloaders were unlocked and the magisk (android 10) was installed, some time ago the root was removed by a normal restart in the black one
I updated the second (white) with odin to android 12, but then I couldn't root it at all, it just crashed a bug every time (while making magisk zip or after all while trying to start the phone), finally had to install stock 12 again.
I decided to sell black one, but now I have a problem that I cannot solve. At first I tried to lock the bootloader, it hung on the samsung log for 2-3 hours, then reseted it and crashed into a bootloop. Download screen and at the top the message
"ODIN MODE (AVB Fail) avbmeta: Error verifying vbmeta image: OKNOTSIGNED (3)
CUSTOM CBMETA
CBMETA: No sign info
VBMETA. "
From this position, I can reset it (vol down + power), quickly hold down vol down + bixby and connect the power to get to standard downloadmode.
Once I managed to start the system somehow, but I have no idea how. Cannot go to recovery, cannot start the system, it only bootloops to "downloadmode" with description above.
Normally, I would just install new stock with Odin, but the real problem is that my PC doesn't see the phone at all, nothing in Devices' manager, nothing in Odin.
When It comes to the white one - everything is visible and fine, so there is no problem with cables, drivers or PC itself. This phone is messed up.
I have no idea what to do with it now, any suggestions?
Thanks a lot
Related
Phone Model: AT&T LG G2 (D800)
Recovery: Custom TWRP Recovery
ROM: CM12 Official ROM
My phone was working fine from last 3-4 months, until today it restarted and got stuck on 'LG' logo, I left it for some time and it shows the demigod green screen of death with option to access download mode and restart.
What I already did!
1) Full hard reset, I can access the TWRP.
2) Flashed the ROM again.
Current Situation!
Stuck on LG logo from last 10mins.
Thanks in advance.
Edit #1: Reflashed the same ROM (CM12) and it booted into the language selection page, freezes and restarted. Stuck on black screen, I turned it off by pressing the power button for 10-15 secs. I kept it in a freezer for 10-15secs and turned it on, same happened.
Edit #2 I flashed a stock based ROM through TWRP, it was going fine but it froze in between, I waited for some time and it went black. I waited for 1 hr and it was still black so I hold the power button and restarted the phone.
Now its showing "Secure Boot Error" which remains for some secs and a black screen comes, I can't open TWRP, Download mode is accessible but after 2 secs into download mode, secure boot error comes. Whenever I try to connect it to Windows PC(I installed all the required drivers and all) it starting popping up drives(with option to format) which never stops until I remove the USB cable.
Hi!
In this thread someone posted a solution.
jazibzps said:
Steps to perform.
1. While in critical error screen you have an option to press volume up button to boot into download mode( although it will not boot to download mode) but still press volume up button so your Pc can detect your phone.
2. Now flash a kdz file of your lg g2 with flash tool. ( you can google for it to download flash file for your lg g2 and how to flash it with lg flass tool.)
3. When you will try to flash it will fail..
4. Now power off your phone by pressing power button.
5. Now boot to download mode and flash the correct kdz with lg flash tool and u r good to go..
To acess download mode power off your phone immediately press volume up button and while keep pressing it and plug in usb cable and you will be in download mode
I performed all this on lg g2 d801 but i hope u can try it on other varients as well. As i was scared of short circut method and srk tool didn't help..
Click to expand...
Click to collapse
For informations about LGs flashtool etc. please check out the G2-Index-Thread.
Jan Philipp said:
Hi!
In this thread someone posted a solution.
For informations about LGs flashtool etc. please check out the G2-Index-Thread.
Click to expand...
Click to collapse
Thanks for replying.
My case is a bit different now, I reflashed the same ROM(CM12) and it successfully booted, worked for 10 secs and it was frozen, restarted automatically, stuck on LG Logo.
I notice that there's some heat issue, I kept it in freezer for 10 secs, rebooted it, it booted till language selection page and freeze after 10-15secs.
Also the link is for DemiGod Critical Crash, mine is DemiGod Kernel Crash.
Updated!!
First post updated, please check the current situation before posting anything.
I don't have a computer or laptop to connect it to so how can I fix it?
Hello guys i have a strange problem. i am using my s7edge for over a year (finally was in batman rom).
After updating to marshmallow i encountered this problem where sometimes rarely my phone reboots (reboot- - show samy logo - then reboot). sometimes after few reboots it will comeback and some other time. i need to wait till it discharges fully and charge it it comes back. (but its so random though. totally happened 3 - 4 times last year)
from last week it happened quite often once a day and from yesterday it keeps rebooting in logo no matter what i do. when this happens only download mode is accessible and twrp recovery is not accessable at all. so i waited till it discharges fully but that does not help.since download mode is accessible i used Odin and flashed stock firmware, still the same result(tried several times). its just keeps rebooting in logo even after flashing with stock firmware via Odin and i have no more options to go for. is my device hard bricked? any more options i can try??? my final hope is someone here will help me.:crying::crying:
Thank you
Oh! I just posted a similar question. After several tries, I sorted out a way to make it boot:
1) With the latest samsung drivers on my notebook, I've downloaded the latest Odin (Odin3_v3.12.3) with this stock rom from sammobile (G935FXXU1DQJ4_G935FUUB1DQJ4_ARO). According to this page this rom works in Argentina and the ARO means it is used on unlocked devices. Then it has no bloatware or any company logo.
2)Charged it for a few minutes until it reached 2~3%. Vol Down + Home + Power (in that order) and entered 'Download mode'. Then plugged it into the pc.
3) Opened AP, BL, CSC and CP files, then flashed it. Once it restarts, try to get it into recovery mode with volup+home+power and charge it. I used a power bank. Then wipe cache and factory reset. Then reboot to system and let it loop until it gets into the OS.
The one I've got in quarantine is working smooth.
Hello guys this is my first post.
I have a SM-G930V Verizon S7 that previously was in bootloop with OREO, but constantly rebooted at the beginning of the setup I mean when it says hello and so on.
I flashed Nougat without problems and booted normaly but then the FRP was doing his work, I could not boot since I didnt know the email or password.
I then flashed a file that I found to bypass FRP and succeded. I finally got it working very well.
After a while when I tried to clean bloatware suddenly frozen and then never booted again, I wanted to root but couldn´t.
NOW when I flash any ROM from Marshmellow , Nougat and Oreo, it says PASS in ODIN but I cannot enter the recovery.
Vol+, Home and Power gives me a blue line top left saying RECOVERY BOOTING..... then a blue screen saying ERASING... and the reboots again and again. The menu that I can get is the Maintenance Boot Mode (Vol- Power). This menu has 4 items:
1.Normanl Boot, 2.Factory Reset, 3.Safe Mode, 4.Power Down, and the only who works is power down.
I don´t know how much batery is left because I don´t know if in this menu or in download mode the battery charges.
I flashed the last OREO from SAMMOBILE, I also flashed the ROM wich I grabbed when using VZW Software Upgrade Assistant which supposed to be repairing the device but nothing whatsoever.
I don´t have any new ideas my head is full and hot now. PLEASE HELP will be appreciated.
Hi guys!
I've read tons of threads and guides on Google but nothing helped me to bring to life my Samsung Galaxy S8 Plus. After hours and hours of test and probes I surrender!
Basically I was using normally my phone and suddenly has power off and showing the Samsung Galaxy Logo continuously. I've force reboot it with vol down+pwr button and after some minutes restart normally again. After 5min again the boot loop and stuck there. Tried again to power it off but didn't work so I thought was the battery (because is 3yrs old with heavy use and months ago I had the screen flickering and a battery drain to zero). I opened the phone, unplug the battery and the power button (because I thought was the power button stucked as on my father phone). So after mounted all the stuff in their place I tried to boot it and suddenly start to work again! I've backup all my things rapidly but again power off by himself and this is the last time I see it working.
So I tried to empty the cache entering in the recovery but it was useless so the only way seems flashing the original FW with Odin. Downloaded the right one with Frija, upload the rights files in Odin (Home_csc because I don't want to lose my internal memory stuff) and the phone automatically reboots, pass the Samsung logo and go in Upgrading mode with the blue android screen and a % increasing. After that by himself power off and nothing happen.
I read some stuff about my possibilities to recover it without losing data but a lot of tutorial talk about entering in recovery but I cannot do it! Simply does not go in recovery with vol_up+bixby+pwr_button even after force shutdown it with vol_down+pwr_button or reattach the battery. The only thing I'm allowed to do is put it in Download Mode to be recognized by Odin.
I've tried to launch ADB devices but it is not visible in Download Mode.
I've tried to flash another firmware for the same model (theoretically my one is unbranded italian) but I tried with WIND one because in download mode there is a text "Carried_ID:WIND" but this FW Odin fail to upload it.
I've tried to flash the TWRP with Odin but fails on the phone with error "Custom binary(recovery) blocked by FRP Lock". I've searched how to unlock it but without have access to recovery or phone settings seems impossible. And this phone has also OEM Lock.
I've tried again to flash the FW but the only difference than before was the blue android robot with stucked text "Installing system update", "Erasing" , "yellow advice notice" and finally a green screen with "An error has occurred while updating the device software.Use the Emergency recovery function in the Smart Switch PC Software". And yes, I already tried with Smart Switch but the program does not detect the phone.
I've also tried to flash the original recovery but nothing change.
Seems that my devices is bricked or a kind of boot loop.
In my situation there is something that I can do to recover the internal memory data? I don't tried to flash the FW with CSC file because I don't want to erase all the data.
My Galaxy was original since the purchasing, no root or flashed a FW, only OTA updates.
I've attached a photo with the stuff that appear in Download mode.
Im pretty noob at these kind of things, long story short, I got myself a old 2018 Galaxy tab A (It was a demo unit as i work in retail and these tablets were going to get thrown away) so i grabbed myself one and i was trying to flash the stock firmware to remove demo mode and to upgrade to Android 10. When trying to flash with Odin (Downloaded official firmware from sammobile) Odin just crashed out and closed down, and when i rebooted the device i can no longer get into the OS, i cannot get into recovery mode AND i cannot get into download mode.
I have tried rebooting many times, I get the boot screen (ONLY by holding power and vol + and - at same time) and once it tries to boot i get a screen (looks like the initial loading of recovery mode) where it says installing system update, (blue screen with the android logo) then a few text comes up FOR about half a second then the device just goes black and i cannot do anything. Is there any way i can restore this device and try to reflash, changing cables, and downloading a different version of odin. If not i will just have to throw it away as it cost me nothing anyways. but wanted to use it as a gift.